S
M
T
W
T
F
S
26
82°
51°
27
81°
49°
28
80°
48°
29
76°
49°
30
75°
48°
31
74°
47°
1
73°
48°
2
74°
47°
3
75°
49°
4
75°
54°
5
75°
51°
6
79°
48°
7
Hist. Avg.
77°
53°
8
Hist. Avg.
77°
53°
9
Hist. Avg.
77°
53°
10
Hist. Avg.
77°
53°
11
Hist. Avg.
77°
53°
12
Hist. Avg.
77°
53°
13
Hist. Avg.
77°
53°
14
Hist. Avg.
77°
53°
15
Hist. Avg.
77°
53°
16
Hist. Avg.
77°
52°
17
Hist. Avg.
77°
52°
18
Hist. Avg.
76°
52°
19
Hist. Avg.
76°
52°
20
Hist. Avg.
76°
52°
21
Hist. Avg.
76°
52°
22
Hist. Avg.
76°
52°
23
Hist. Avg.
76°
51°
24
Hist. Avg.
76°
51°
25
Hist. Avg.
75°
51°
26
Hist. Avg.
75°
51°
27
Hist. Avg.
75°
50°
28
Hist. Avg.
75°
50°
29
Hist. Avg.
75°
50°
30
Hist. Avg.
74°
50°
31
Hist. Avg.
74°
49°
1
Hist. Avg.
74°
49°
2
Hist. Avg.
74°
49°
3
Hist. Avg.
73°
49°
4
Hist. Avg.
73°
48°
5
Hist. Avg.
73°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Port Alberni
Port Alberni's August 2026 forecast shows daily high temperatures ranging from 73° to 82°, with overnight lows between 47° and 54°. The average high for August is 77° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Port Alberni. See also: September | October | November.